         (.selectAll "text")
         (.transition)
         (.duration 200)
-        (.attr "fill-opacity"   #(this-as element (fade-value element step-data))))))
+        (.attr "fill-opacity" #(this-as element (fade-value element step-data))))))
 
 (defn highlight-selected-step! [step selected]
   (-> step

                        (aget step "step")))

(defn draw-containers! [build x-scale step]
  (let [step-length         #(- (scaled-time x-scale % "end_time")
                                (scaled-time x-scale % "start_time"))
        step-start-pos      #(x-scale (js/Date. (aget % "start_time")))
        step-duration       #(datetime/as-duration (duration (aget % "start_time") (aget % "end_time")))]
    (-> step
        (.selectAll "rect")
          (.data #(aget % "actions"))

  (let [root (.select js/d3 dom-root)]
    (-> root
        (.attr "width" (+ (timings-width)
                          left-axis-width
                          padding-right))
        (.attr "height" (+ (timings-height number-of-containers)
                           top-axis-height)))
    (-> root
        (.select "g")
        (.remove))
